Picture it this way, rkzenrage. Many people, when they discover they or their partner are pregnant, can say they have a preference for having a boy or a girl. This does not mean they do not want the other gender, but all other things being equal, if they got to pick, they could make a decision without being thrown into ethical psychological turmoil.
There's a difference between sentimentally wanting your grandkid to have blue eyes just like grandma, and not wanting a bi-racial child. Most people can love their grandchildren unconditionally regardless of how they look, but also delight in finding genetic similarities between themselves and their offspring.
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